Companies all over the world are marketing their companies using social media, radio and TV advertising, and print media such as newspaper ads, brochures, vehicle wraps and billboards. However, many of those companies are struggling to determine which platform provides the best return on investment. Effective marketing campaigns measure the performance of each campaign using a variety of techniques. An effective way to measure marketing campaign performance is to assign unique phone numbers to each marketing touchpoint, and then to track phone calls (and conversions) generated from each marketing touchpoint.